Basic Documentation
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoint
- 4.4 Application overview
- 4.5 Additional functions
- 4.6 Control sequences
- 4.7 Control outputs
- 4.8 Fan control
- 4.9 Multifunctional input, digital input
- 4.10 Auto Timer
- 4.11 Handling system faults
- 4.12 Infrared remote control
- 4.13 Control parameters
- 5 Connection
- 6 Technical data
- 7 Dimensions
- Index
Functions
Fan control
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WARNING
Fan failure
In the event of fan failure, the thermostat cannot protect the electric heater
against over-temperature. Thus, the electric heater must feature a separate safety
device (thermal cutout).
The "Clean fan filter reminder" function counts the fan operating hours and displays
message "FIL " to remind users to change/clean the fan filter as soon as the
threshold is reached. This does not impact the thermostat's operation, which
continues to run normally. The function is set via parameter P62 (Service filter).
The "Clean filter reminder" is reset when the operating mode is manually set to
Protection and back.
In Auto Timer mode, the default fan mode is automatic. The fan mode can be
changed to Manual by pressing the FAN button. The fan returns to automatic mode
after each switchover from Comfort to Economy, and vice versa.
Clean fan filter reminder
Fault information
Fan in Auto Timer mode